Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/chemany/mente/native-mcpnpx skills add chemany/Mente --skill native-mcpgit clone --depth 1 https://github.com/chemany/MenteWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/chemany/mente/native-mcp)<a href="https://agentmods.dev/skills/chemany/mente/native-mcp"><img src="https://agentmods.dev/badge/skills/chemany/mente/native-mcp.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00018 | $0.02957 |
| Opus 5 | $0.00009 | $0.01478 |
| Sonnet 5 | $0.00004 | $0.00591 |
| Haiku 4.5 | $0.00002 | $0.00296 |
Grade A, and why
native-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
88% identical to native-mcp — 32 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 357 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Native MCP Client
Mente has a built-in MCP client that connects to MCP servers at startup, discovers their tools, and makes them available as first-class tools the agent can call directly. No bridge CLI needed -- tools from MCP servers appear alongside built-in tools like terminal, read_file, etc.
When to Use
Use this whenever you want to:
- Connect to MCP servers and use their tools from within Mente
- Add external capabilities (filesystem access, GitHub, databases, APIs) via MCP
- Run local stdio-based MCP servers (npx, uvx, or any command)
- Connect to remote HTTP/StreamableHTTP MCP servers
- Have MCP tools auto-discovered and available in every conversation
For ad-hoc, one-off MCP tool calls from the terminal without configuring anything, see the mcporter skill instead.
Prerequisites
- mcp Python package -- optional dependency; install with
pip install mcp. If not installed, MCP support is silently disabled. - Node.js -- required for
npx-based MCP servers (most community servers) - uv -- required for
uvx-based MCP servers (Python-based servers)
Install the MCP SDK:
pip install mcp
# or, if using uv:
uv pip install mcp
Quick Start
Add MCP servers to ~/.hermes/config.yaml under the mcp_servers key:
mcp_servers:
time:
command: "uvx"
args: ["mcp-server-time"]
Restart Mente. On startup it will:
- Connect to the server
- Discover available tools
- Register them with the prefix
mcp_time_* - Inject them into all platform toolsets
You can then use the tools naturally -- just ask the agent to get the current time.
Configuration Reference
Each entry under mcp_servers is a server name mapped to its config. There are two transport types: stdio (command-based) and HTTP (url-based).
Stdio Transport (command + args)
mcp_servers:
server_name:
command: "npx" # (required) executable to run
args: ["-y", "pkg-name"] # (optional) command arguments, default: []
env: # (optional) environment variables for the subprocess
SOME_API_KEY: "value"
timeout: 120 # (optional) per-tool-call timeout in seconds, default: 120
connect_timeout: 60 # (optional) initial connection timeout in seconds, default: 60
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 357 lines · 18 tokens per session scan A 6887e8fc4142
native-mcp is a skill published in the GitHub repository chemany/Mente (11 stars, last pushed 3mo ago), licensed MIT. It adds 18 tokens to every session and 2,957 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to native-mcp, differing in 32 lines, and is treated as a copy.
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